International Scientific Journal

Thermal Science - Online First

External Links

online first only

Effect of non-uniform temperature distribution on surface absorption receiver in parabolic dish solar concentrator

A flat surface absorption receiver was experimentally investigated with a parabolic dish solar concentrator in order to study the effect of receiver temperature distribution on heat gain and losses. The addition of specially designed metal fins in the inner surface of the receiver surface side the receiver transfers the incident heat flux to heat transfer fluid. The receiver surface temperature increased with increase in concentration ratio, intensity of beam radiation, ambient temperature, but decrease with wind speed. The absorptivity of black coated mild steel of 0.85 and also the 0.15 emissivity of mild steel reduced the heat loss from the surface and improved heat gain to heat transfer fluid. The temperature gradient between the receiver periphery and centre is around 150°C. Fluid flow direction like straight and curved paths have been discussed for effective heat absorption and reduced operational duration. The thermal efficiency and operational duration were determined for a flow rate of 80 litres per hour through the receiver. Water flow though the curved path was observed with improved thermal efficiency of 3.8% and 20% reduction in operational duration when compared to the vertical flow through the receiver at same flow rate.
PAPER REVISED: 2015-09-15
PAPER ACCEPTED: 2015-10-07
  1. Munir, A., et al., Design principle and calculations of a Scheffler fixed focus concentrator for medium temperature applications, Solar Energy, 84 (2010) pp.1490-1502
  2. Fuqing Cui, et al., Study on combined heat loss of a dish receiver with quartz glass cover, Applied Energy, 112 (2013) pp.690 - 696
  3. Tao, R.W., et al., Numerical study on coupling phase change heat transfer performance of solar dish collector, Solar Energy, 90 (2013) pp.84-93
  4. Sendhil Kumar, N., Reddy, K.S., Comparison of receivers for solar dish collector system, Energy Conversion and Management, 49 (2008) pp.812-819
  5. Ashmore Mawire, Simeon Taole, H., Experimental energy and exergy performance of a solar receiver for a domestic parabolic dish concentrator for teaching purposes, Energy for Sustainable Development, 19 (2014) pp.162-169
  6. Safa Skouri, et al., Comparative study of different means of concentrated solar flux measurement of solar parabolic dish, Energy Conversion and Management, 76 (2013) pp.1043-1052
  7. Fuqiang Wang, et al., Thermal performance analysis of porous media receiver with concentrated solar irradiation, International Journal of Heat and Mass Transfer, 62 (2013) pp.247-254
  8. Jianfeng Lu, Jing Ding, Jianping Yang, Xiaoxi Yang, Nonuniform heat transfer model and performance of parabolic trough solar receiver, Energy, 59 (2013) pp.666 - 675
  9. Yanjuan Wang, et al., Performance analysis of a parabolic trough solar collector with non-uniform solar flux conditions, International Journal of Heat and Mass Transfer, 82 (2015) pp.236-249
  10. Wang Fuqiang, et al.,Effects of glass cover on heat flux distribution for tube receiver with parabolic trough collector system, Energy Conversion and Management, 90 (2015) pp.47-52
  11. Zhirong Liao, et al., Allowable flux density on a solar central receiver, Renewable Energy, 62 (2014) pp.747-753
  12. Roldan, M.I., Monterreal,R., Heat flux and temperature prediction on a volumetric receiver installed in a solar furnace, Applied Energy, 120 (2014) pp.65-74
  13. Vishal, R., et al., Design, development & performance evaluation of concentrating monoaxial Scheffler technology for water heating and low temperature industrial steam application, International Journal of Engineering Research and Applications, 2 (2012) pp.848-852
  14. Rupesh, J. P., et al., Experimental analysis of Scheffler reflector water heater, Thermal Sciences, 15 (2011) pp.599-604
  15. Mikhail, E.M., et al., Introduction to modern photogrammetry, John Wiley and Sons, New York, USA, 2001
  16. Jesús Fernández-Reche, Loreto Valenzuela, Geometrical Assessment of Solar Concentrators using Close-range Photogrammetry, Energy Procedia, 30 (2012) pp.84-90
  17. José Ruelas, et al., Ray Tracing Study to Determine the Characteristics of the Solar Image in the Receiver for a Scheffler-Type Solar Concentrator Coupled with a Stirling Engine, Energy Procedia, 57 (2014) pp.2858 - 2866